The simple fact is that scars are ugly, and once they’re really established, they’re not going to go away.  That being said, they get established within a year after first showing up.  They fade off during that year in most cases, whether they stick up, are lightly colored, are darker, are depressed, etc.  Well that is they blend in with your skin as much as they are going to blend in if you just leave it. 

So while obviously, you want to prevent them by not picking at your scabs, acne, etc. there are other ways to deal with it.  When you happen to have a really bad zit for example, I find that Neosporin actually works.  Obviously, Neosporin heals the skin more properly to avoid any scarring.  But if you use it on the zit and then put a bandaid on it, thereby putting more on actually underneath the bandaid to soak in throughout the day, a lot of the inflammation will shrink down, doing less damage to your skin in general. 

Now I would suggest using something like that in all stages if you can to prevent scarring.  Aloe vera is also a really good one for that.  Both of these will also reduce pain oftentimes.  So all in all, it’s a good thing.